From: Keith.S.Thompson+u@gmail.com   
      
   Lawrence D’Oliveiro  writes:   
   > On Wed, 7 Jan 2026 12:45:30 -0500, James Russell Kuyper Jr. wrote:   
   >> On a different point, I used time_t as an example. It would have   
   >> been better to use ptrdiff_t instead, since  has a macro   
   >> for that type, and doesn't have one for time_t.   
   >   
   > This is why you have configure scripts, so they can figure out the   
   > right types to use for building on your platform.   
      
   I don't follow.  ptrdiff_t is defined in , and is the correct   
   type for the result of subtracting two pointers.  What relevant   
   information would a configure script give you?   
      
   --   
   Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com   
   void Void(void) { Void(); } /* The recursive call of the void */   
      
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